Extractor for guns with pivoted breechblocks



EXTRACTOR FOR GUNS WITH PIVOTED BREECH BLOCK Filed Sept. 20, 1950 gm \b////////l Patented Aug. 12, 1952 Ex'rnaoroa roe GUNS Wrrn rivoranan-secnepoons Claude Alfred Perr gbiton, England, assignor to TheBirmingham Small Arms Company Limited, Birmingham, England, a Britishcompany Application September 2c, 1951 Serial No. 185,863 7 In GreatBritain September 24, 1949 41 Claims. 1

This invention relates to firearms having an action of the Martini type,that is to say, an action having a pivoted breech-block, in which thefiring pin is mounted, the breech-block being operated by a cockinglever and the firing pin by a tumbler (under the control of thetriggeron' firing and by movement of the'cocking lever on cocking)preferably mounted upon the pivot of the cooking lever, 21 combinedextractor and ejector of bell-crank formation being provided andoperated by engagement with and movement of the breech-block.

In the usual construction of firearms having this type of action,ejection of the cartridge case is obtained solely by the force appliedto one of the arms of the ejector by the downward movement of thebreech-block obtained by operation of the cocking lever. To cause thecartridge case to be ejected clear of the weapon the cocking lever hasto be moved somewhat sharply, particularly during the latter part of itsoutward movement. If this is not done it frequently happens that thecartridge case is not properly ejected from the weapon and it may evennot have been moved clear of the chamber.

It is an object of this invention to improve the ejection of cartridgecases from firearms of the type in question by minimising thepossibility of the cartridge case not being thrown clear of the weapon.

The invention is illustrated, by way of example, in the accompanyingdrawings, wherein:

Figure l is a fragmentary longitudinal sectional view showing the breechmechanism of a Martini rifle provided with a spring loaded ejector inaccordance with the invention, the various parts of the mechanism beingshown in the closed or cooked position;

Figure 2 is a similar section showing the breech mechanism in the openor uncooked position;

In carrying the invention into effect as applied to a construction ofcombined extractor and ejector for rifles having an action of theMartini type, as illustrated in Figures 1 and 2, the breech mechanismconsists as usual of a breech-block I, a tumbler 3, a trigger and acooking lever I all pivotally mounted in the frame or receiver 8. Thetumbler 3 comprises a two-armed lever, one arm 3 engaging with a notchin the trigger 5 while the other arm I! engages with a spring loadedfiring pin l 3 housed in the breech-block I.

Pivotally mounted in the frame or receiver 3 at a position forward ofthe trigger 5 is an ejector 33 comprising a bell-crank lever having anarm 35 also constituting the extractor and a second arm 31 which extendsin a direction roughly nor- 2 mal to the arm 35. Near the end of the arm31 is formed a recess for the engagement of one end of a leaf spring 39of the bifurcated type, said spring being mounted horizontally along theinner part of the forward extension of the trigger guard 25, the freeends facing the butt-end of the'weapon with the'lower limb engaging thetrigger guard extension. Pivotally mounted near the forward end of thetrigger guard extension and disposed adjacent to the ejector 33 is alever 4| mounted horizontally along the inner part of the trigger guardextension, said lever having a projecting nose portion 43 which isadapted to contact with the downwardly moving breechblock I when theweapon is uncooked by depression of the cocking lever I, as seen inFigure 2. In the arm 37 of the ejector 33 is a further recess forming aheel portion 45 which is engaged (in the cocked position of themechanism as shown in Figure l) by a projecting part 41 formed on thelever 44, which maintains the ejector 33 in its inoperative positionunder the influence of a coil compression spring 49 located between theunderside of the lever 4| and the trigger guard extension.

The operation of the ejector mechanism is as follows:

Assume the weapon to be cocked and ready for firing, as shown inFigure 1. In this position the spring 33 is stressed and accordingly isapplying a load to the ejector 33 tending to turn it in ananti-clockwise direction around its pivot, such turning however beingresisted by the engagement of the heel portion 45 with the lever 4|!through the projecting part 41. After firing, the weapon is uncooked bydepression of the cocking lever 1, whereby the parts assume the positionshown in Figure 2. This causes the forward end of the breech-block I tobe swung downwardly about its pivot, but the ejector 33 is not freedsince in the initial movement of the breech-block the lever ii is notcontacted, and therefore the ejector continues to be positively held bythe lever 4! although the front end of the block has cleared the breechchamber. On continued movement of the breech-block, the nose portion 43of the lever A! is struck by the bottom face of the block whereby thelever is turned about its pivot against the thrust of the spring 49until the part A! disengages from the heel portion 45 of the ejector, asseen in Figure 2, thereby permitting the spring 39 under its releasedenergy to impart a rapid movement to the ejector 33 and effectivelyremove the unobstructed empty cartridge case. On re-cocking the weapon,the breech-block I is raised thereby Having thus described my invention,what ,I 7

claim as new and desire to secure by Letters Patent is:

1. In a firearm of the kind specified, the combination with a pivotedoperating lever and a pivoted breech-block, of a combined extractor andejector in the form of a pivoted bell-crank lever having a main arm, anauxiliary arm extending substantially normal to the main arm, and a heelportion, a pivoted holding lever formed with a projecting portion toengage the heel portion of the bell-crank lever, a nose portion on saidholding lever positioned to be contacted by the breech-block andto beactuated thereby to release the bell-crank lever, and a spring engagedwith ,the auxiliary armof the bell-crank lever for actuating it.

2. A firearm as defined in claim 1, including a trigger guard extension,and wherein said spring is a bifurcated leaf spring having upper andlower limbs, and the auxiliary arm of said bellcrank lever is recessedto receive the end of the upper limb of said leaf spring, and the lowerlimb of said leaf spring engages the trigger guard extension.

3. A firearm as defined in claim 1, including a trigger guard extension,and wherein said holding lever is mounted on said trigger guardextension.

4. A firearm as defined in claim 1, including a trigger guard extension,and wherein said holding lever has a nose portion formed thereon andpositioned to be contacted by the breech-block during downward openingmovement thereof, and a compression spring located between the undersideof said holding lever and the trigger guard extension and constrainingsaid holding lever to maintain contact with the heel portion of saidbell-crank lever.

CLAUDE ALFRED PERRY.

REFERENCES CITED UNITED STATES PATENTS Name Date Number Pieri Apr. 13,1886

